VO<sub>2</sub> /TiN Plasmonic Thermochromic Smart Coatings for Room-Temperature Applications.

Hao, Qi; Li, Wan; Xu, Huiyan; Wang, Jiawei; Yin, Yin; Wang, Huaiyu; Ma, Libo; Ma, Fei et al. · Adv Mater · 2018

basic_science · Level V

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Abstract

Vanadium dioxide/titanium nitride (VO<sub>2</sub> /TiN) smart coatings are prepared by hybridizing thermochromic VO<sub>2</sub> with plasmonic TiN nanoparticles. The VO<sub>2</sub> /TiN coatings can control infrared (IR) radiation dynamically in accordance with the ambient temperature and illumination intensity. It blocks IR light under strong illumination at 28 °C but is IR transparent under weak irradiation conditions or at a low temperature of 20 °C. The VO<sub>2</sub> /TiN coatings exhibit a good integral visible transmittance of up to 51% and excellent IR switching efficiency of 48% at 2000 nm. These unique advantages make VO<sub>2</sub> /TiN promising as smart energy-saving windows.